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8-1
8. Viewing and Changing Controller
Configuration Parameters
8.1 Introduction
The CN8-SW system permits any operator with View/Change Parameter privileges to
access parameter values stored in each controllerÕs memory.
The Omega Plus Protocol supports viewing and changing all parameter values over the
network. These Omega Plus controller values are read and stored in non-volatile
(permanent) memory.
The original Omega Protocol supports viewing the most important parameters and
changing a sub-set of these parameters. You can specify whether you want to see and
change the values in volatile (temporary) memory or in non-volatile (permanent) memory.
8.2 Accessing Configuration Parameter Displays
To access the parameter displays:
1. Log in as MULTI (or another user with View/Change Parameter privileges).
2. Use one of the following two methods to access the displays:
· select the controller by clicking on it in the main graphic display, then using
Controller | Parameters,
or
· double-click on any controller in the main graphic display.
Either method will open the window showing the current value of the controllerÕs
accessible parameters.
In the case of an Omega Plus-compliant controller, the window will contain a set of
tabbed ÒlayersÓ. Click on a tab to select the group of parameters to be viewed.
8.3 Using Configuration Parameter Displays
Be aware that not all displayed parameters apply to the selected device, or to the current
configuration. In some cases the value of an unused parameter is gray, and no input is
accepted. For example, on the 16
th
DIN Omega CN8500 Input tab shown earlier in this
section, the Low Scale and High Scale parameters do not apply when a thermocouple
input is used. Therefore, the Low Scale and High Scale values are gray. They do not
apply to the current configuration and cannot be changed.